pretty good night

The seeing was forecasted for above average, and for once it was correct.  A good 7/10 at 9pm, about 8/10 at 10pm.  Transparency was forecasted to be even better, but a gauze of wildfire smoke floated overhead, cutting views of fainter pairs.  Nevertheless it was a good outing and nice to be back under the stars for a more normal time.  I packed it in at 11:30pm which the haze was noticeably thick and illuminated by the moon; it was like trying to view through the Orion nebula.

BU 151 AB: 508; 1067x: Rotanev, Beta Delphinus.  Best I can get is a slight snowman, with and without apodising mask.  26.68y period.  Burnham discovered at 0.7" in his 6-inch in August 1873, and when compiling his catalog in 1899 noted it had made substantially one revolution.  This will widen through this decade and should be resolvable in a few years, getting back to ~0.7" in 2030.

20H 37M 32.87S +14° 35' 42.7" P.A. 220 SEP 0.22 MAG 4.11,5.02 SP F5IV+F2V DIST. 30.93 PC (100.89 L.Y.)

STF 2665 A-BC: 508; 333x: White and light white, ~2 delta mag, ~3".  BC is A 1672, 10.10/10.80, currently 0.1" but at 0.2" at discovery in 1907 -- no orbit given so don't know when this will separate to detectability again. 
20H 19M 21.16S +14° 22' 14.6" P.A. 12 SEP 3.3 MAG 6.88,9.55 SP KIII+BV+ DIST. 167.79 PC (547.33 L.Y.)

A 1673 AB: 508; 333x: Finely split, ~1 delta mag, white stars.
20H 19M 40.14S +15° 21' 31.1" P.A. 55 SEP 1 MAG 9.89,10.82 SP F8

STF 2673 AB: 508; 333x: Bright white stars, ~2 delta mag, ~2" separation. 

20H 22M 43.76S +13° 20' 25.4" P.A. 326 SEP 2.4 MAG 8.29,9.75 SP F2

A 288 AB: 508; 1067x: Hairline split, noticeable mag difference, white. Very fine pair.  163y period, it won't make an appreciable change in my time, though it will widen to the 1901 discovery separation of 0.3" in 2075.  
20H 23M 08.98S +20° 51' 51.1" P.A. 306.1 SEP 0.22 MAG 8.72,8.98 SP F2 DIST. 251.89 PC (821.67 L.Y.)

HU 1198 AB: 508; 333x: Very finely split at 333x, obvious at 533x, significant magnitude difference.
20H 24M 23.10S +13° 00' 35.4" P.A. 33 SEP 0.6 MAG 8.54,10.04 SP B9 DIST. 813.01 PC (2652.04 L.Y.)

A 1209 AB: 508; 333x: Very cool!  A is obviously split with a ~1 delta white companion <1" -- this turns out to be WOR 33 Aa-Ab, 8.60/9.30 0.7".  At the opposite side is the wider fainter companion, which is A 1209 AB.  WOR 33 was 0.3" at discovery in 1970 and it has widened very considerably since; so this might be "only" a high proper motion star.*  C.E. Worley was a well loved astronomer at the US Naval Observatory, his obituary is here http://astro.gsu.edu/wds/worley.html

WOR 33 Aa-Ab: 20H 24M 26.64S +12° 12' 44.8" P.A. 132 SEP 0.7 MAG 8.60,9.30 SP F8

A 1209 AB: 20H 24M 26.64S +12° 12' 44.8" P.A. 324 SEP 1.9 MAG 9.22,10.63 SP F8
** Could someone remind me how to show the proper motion layer in Aladin?

J 841 AB: 508; 333x: Easy wide near equal pair.  Unfortunately I did not check the details of this one; there's an AB-C pair 10.4.0/11.40 0.2" which I didn't realize was there to go after -- in any case I didn't notice anything unusual with the disk at 333x. 

20H 24M 56.07S +13° 08' 58.0" P.A. 83 SEP 8.4 MAG 10.00,10.70 SP F8

TDS1072 AB: 508; 333x: Very fine split, faint, near equal pair, ~1".  Two observations since discovery in 1991. 
20H 24M 59.46S +15° 31' 52.6" P.A. 161 SEP 0.9 MAG 11.54,11.58

BRT1343 AB: 508; 333x: Easy near equal wide
20H 27M 30.17S +14° 56' 28.0" P.A. 335 SEP 4.5 MAG 11.00,11.00

AG 256 AB: 508; 333x: White A and slightly brown-red B, ~1 delta, wide 
20H 27M 55.81S +09° 57' 34.9" P.A. 351 SEP 5.2 MAG 9.44,10.61 SP A2

HO 131 AB: 508; 333x: Bright light yellow A and ~3 delta mag yellow B, ~3" 
20H 28M 18.64S +18° 46' 10.2" P.A. 334 SEP 3.4 MAG 6.97,10.60 SP G1V DIST. 38.52 PC (125.65 L.Y.)

BU 987 AB: 508; 333x: Bright white A and much fainter B, ~3 delta mag & ~3" separation.  Discovered in 1880 with the Dearborn 18.5-inch at 2.32"
20H 30M 14.44S +19° 25' 15.7" P.A. 128 SEP 2.5 MAG 6.80,11.10 SP B7IV DIST. 386.1 PC (1259.46 L.Y.)

A 610 AB: 508; 333x: Very finely split, white near equal,  nice.   170.62y period, will make less than a quarter turn the next couple of decades.
20H 29M 02.58S +07° 09' 29.3" P.A. 94.2 SEP 0.46 MAG 9.52,9.91 SP G0 DIST. 78.12 PC (254.83 L.Y.)    

BU 63 AB: 508; 533x: 1 Del.  B seen within A's diffraction at 533x and apodising mask, <1", ~2 delta.

20H 30M 17.95S +10° 53' 45.3" P.A. 347 SEP 0.9 MAG 6.20,8.02 SP BE+B DIST. 227.79 PC (743.05 L.Y.)

AG 408 AB: 508; 333x: Easy wide, ~2 delta.  Not physical

20H 30M 36.26S +14° 04' 09.9" P.A. 285 SEP 5.1 MAG 9.30,10.80 SP F5

STF 2688 AB: 508; 333x: Gold A and blue B, half delta mag.  Very like Albireo, and like Albireo it is not physical. 
20H 30M 48.26S +13° 47' 02.4" P.A. 175 SEP 8 MAG 9.35,10.41 SP G0

J 3 AB: 508; 333x: Faint, ~2 separated, noticeable mag difference.  

20H 31M 33.39S +11° 50' 24.8" P.A. 130 SEP 2.1 MAG 11.90,12.10

A 1677 AB: 508; 333x: B plainly visible, pale yellow to bright white A, ~2 delta mag, ~1"
20H 32M 07.67S +15° 11' 12.2" P.A. 184 SEP 1.3 MAG 8.14,10.90 SP G0 DIST. 96.9 PC (316.09 L.Y.)

BU 670 AB: 508; 333x: Nicely split, noticeable magnitude difference, <1"

20H 32M 55.22S +13° 56' 40.0" P.A. 5 SEP 0.8 MAG 9.44,9.87 SP F8

BU 1208 AB: 508; 533x: With apodising mask to suppress bright white A's brightness, and with foveal coaxing due to its very faintness, B emerges into view ~3", a very small fine point.  Likely tougher than it should have been due to the sky haze -- indeed after seeing it as above, when I went back down to 333x I could see B direct vision, knowing where and what to look for.  Discovered with the Lick 36-inch in 1890 at 2.94".

20H 34M 31.81S +06° 52' 41.1" P.A. 332 SEP 3.1 MAG 6.95,11.00 SP B3IV DIST. 308.64 PC (1006.78 L.Y.)

TDT2394 AB: 508; 533x: Hairline split, considerable magnitude difference.
20H 34M 54.35S +11° 20' 13.7" P.A. 3 SEP 0.5 MAG 9.23,9.52 SP G0

COU 223 AB: 508; 533x: Elongation with 333x, very finely split with 533x, wider split with 667x.  Very faint, more than just a little delta mag.,  slightly orange stars
20H 34M 46.33S +17° 25' 38.7" P.A. 155 SEP 0.4 MAG 11.10,11.20 SP F8

STF 2701 AB: 508; 333x: White, near equal, well separated
20H 36M 58.85S +12° 02' 55.3" P.A. 221 SEP 2.1 MAG 8.32,8.59 SP G5 DIST. 117.65 PC (383.77 L.Y.)

AG 258 AB: 508; 333x: White, wide, half delta mag. 
20H 36M 37.44S +10° 27' 03.2" P.A. 11 SEP 4.2 MAG 9.32,10.00 SP G0

HEI 586 AB: 508; 333x: Split, near equal, white  

20H 37M 29.88S +10° 49' 43.3" P.A. 222 SEP 0.5 MAG 10.26,10.18 SP F5

A 1680 AB: 508; 333x: Light yellow A and faint ~3 delta mag blue B, wide ~4".  Not physical
20H 37M 12.89S +12° 49' 41.7" P.A. 295 SEP 3.8 MAG 8.99,12.20 SP G0

BU 1491 AB: 508; 333x: White A, B appears with foveal coaxing and and then I can hold it direct 

20H 38M 15.10S +10° 43' 24.9" P.A. 87 SEP 3.2 MAG 8.82,11.60 SP AM

BU 435 AB: 508; 333x: Easy white and yellow, wide ~3, ~2 delta mag.

20H 38M 50.10S +15° 00' 26.3" P.A. 119 SEP 3.1 MAG 8.34,10.78 SP G0 DIST. 273.97 PC (893.69 L.Y.)